Kbin Userstyles and Userscripts

This userscript adds a checkbox to the sidebar that lets you turn magazine stylesheets on and off. It also remembers if you have a magazine's stylesheet disabled, so when you come back to it later, it'll still be turned off (or back on!)

If you don't have a userscript manager, you can install Tampermonkey or Firemonkey if you're on firefox, and then click the install button on the greasyfork page.
Here's what it looks like